174 FOSSIL REMAINS OF QUADRUPEDS, &C. 
den. It is stated in the Geological Survey, that " the 
bones had scarcely any appearance of being water-worn 
and this is true of most of those that were found at or 
near the entrance of the cave : but the bones from the in- 
terior, and especially from the extremities, of the cavern, 
bore more decisive marks of friction ; and in a large collec- 
tion, which I saw after the publication of the Survey, and 
which had been brought out from the remote branches of 
the cave, I could scarcely observe one specimen that was 
not obviously worn. This circumstance may go a great 
way towards deciding the cause of their being worn ; for, 
on the supposition of their being water- worn, it is natural 
to expect, that the bones which were projected farthest into 
the cavern, being most rubbed against the sides, and against 
one another, would be most rounded and polished ; where- 
as, had they been worn smooth by the feet of the hyaenas, 
those which lay in the first part of the cave, the grand 
thoroughfare to all its chambers and branches, would have 
acquired the highest polish, or been most worn. 
In supporting his hypothesis, the learned Professor lays 
much stress on a fact which he observed, that several of 
the bones are polished on one side, and not on the other ; 
which is the case, particularly with the jaw-bones and other 
curved bones, the convex side being smooth, while the con- 
cave side is rough : but, whether we consider them as worn 
by being trampled on, or by being rolled and drifted about 
by water, the convex side, being most exposed, would ne- 
cessarily be most worn. Mr Buckland alleges, that the 
ends of such bones are not rounded, but remain sharp. 
To a certain extent this may be admitted ; yet in hundreds 
of specimens which I have examined, the ends are obvious- 
ly worn and blunted ; though, where the bone terminates 
in a fracture, we cannot expect the same degree of polish 
at the ends, as where the bone is entire, and naturally pre- 
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